What is indentation hardness?

Spherical Indentation Hardness of Shape Memory Alloys

What is the Hardness Perceived by Tapping?

A human can perceive the hardness of an object by tapping its surface. We compared the ranked subjective hardness values and physical properties of objects, including their stiffness, viscosity, density, and Shore hardness, and the frequencies and time constants of the natural vibrations caused by tapping. The stiffness, frequency, and viscosity exhibited a relatively strong positive correlatio...

P-value: What is and what is not

The misinterpretation and misuse of p-value have been increasing for decades. In March 2016, the American Statistical Association released a statement to warn about the use and interpretation of p-value. In this study, we provided a definition and discussion of p-value and emphasized the importance of its accurate interpretation.    

What Is Applied Literature?

Applied literature is a term that is the outcome of a need to put literature to tangible uses in the “real” world. A medical practitioner looking for a definition of life, for instance, finds literature a useful source for the answer. With paradigm shifts in scientific studies, interdisciplinarity has been a method to overcome the alienations that resulted from the isolation of disciplines from...

Conventional Vickers and true instrumented indentation hardness determined by instrumented indentation tests

We evaluate Vickers hardness and true instrumented indentation test (IIT) hardness of 24 metals over a wide range of mechanical properties using just IIT parameters by taking into account the real contact morphology beneath the Vickers indenter. Correlating the conventional Vickers hardness, indentation contact morphology, and IIT parameters for the 24 metals reveals relationships between conta...